We are using nRF5340 Engineering D and are having issues with the SPIM peripheral.
In some transactions, the MOSI line is not correctly driven.
The following capture shows a transaction where the expected data is 31 00 01 00 B6 ...
MOSI is not connected to a slave and is shown in green.
The expected bits seem to be driven to a few mV (see red circle)
Some more details on the transaction: We are using SPIM via the Zephyr SPI driver. The first two bytes are transmitted with options (SPI_LOCK_ON | SPI_HOLD_ON_CS).
The issue occurs on both SPIM2 and SPIM3.
Is this a known problem with the nRF53?
